A group of people board a Mars shuttle to embark on a mission to construct a settlement on Mars. However, during the journey to Mars, a tragic incident occurs—a person dies aboard the spaceship. Chris, one of the crew members, must uncover the cause of the accident and investigate the possibility that someone may have intentionally committed murder.
To complicate matters further, there are rumors that an android, indistinguishable from a human, is among the group and may be responsible for the crime. Is the one endangering the spaceship on its way to Mars an android, or is it one of the other passengers?